72277743 has 8 divisors (see below), whose sum is σ = 98188848. Its totient is φ = 47275904.

The previous prime is 72277703. The next prime is 72277757. The reversal of 72277743 is 34777227.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72277743 - 2⁶ = 72277679 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72277703) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227130 + ... + 227447.

It is an arithmetic number, because the mean of its divisors is an integer number (12273606).

Almost surely, 2^72277743 is an apocalyptic number.

72277743 is a deficient number, since it is larger than the sum of its proper divisors (25911105).

72277743 is a wasteful number, since it uses less digits than its factorization.

72277743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454633.

The product of its digits is 115248, while the sum is 39.

The square root of 72277743 is about 8501.6317845458. The cubic root of 72277743 is about 416.5510122385.

The spelling of 72277743 in words is "seventy-two million, two hundred seventy-seven thousand, seven hundred forty-three".